Peters



w. FARNiHAM.

- Burglar Alarm. No. 60,162. Patented Dec. 4,1866.

N PETERS. PHOTWUMDGRAFHER. WASHINGTON, I C.

description thereof, reference being had to the accompanying drawings,in which' guifrh 1am gaunt Hire.

IMPROVED BU'RGLAB ALARM.

SPECIFICATION.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, WILLARD: FARNHAM, of J ancsville, in the county ofRock, and State of Wisconsin, havg invented a new and improved BurglarAlarm; and I do hereby declare that the following is a full and exact,

Figure 1 is an elevation or side view'of my burglar alarm.

Figure 2 is a side view inverse to fig. 1. Figure 3 is the same as fig.1,'but showing'some of the parts in a difi'ercut position. Figure 4 is afront view; and

Figure 5 is a top view of the same.

The nature of my invention consists, first, in constructing a burglaralarm of the form of a wedge, with spurs or teeth in the bottom of thesame, so that by placing it with its point under a door the latter iseffectually prevented from being opened; second, in providing aburglaralarm, constructed as above, with a trip lever, tumbler, and spring,dog, hammer, nipple, and match-holder, so arranged that when placed inposition under a, p 1

door, the opening of the latter shall causethe hammer to ignite a capand also to light a match.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction i and operation.

I construct the supporting part, A, of the general form of a wedge,providing it with a suitable base, B B, 'to prevent it from beingjostled over. To these I att'aph, as in an ordinary gun-lock, thetumbler and spring, Y

C and D, hammer E, and nipple F; I "also attach thereto, as shown indrawings, a trip lever G, dog 11, and match-holder, I. The base, B B,has spurs orteeth, a a, projecting forwardto catch or bite in the fioorto prevent my device, when used as a door fastener, from being'shoverlout of position as the door opens. These spurs may be of any form andnumber, and placed in any desired position on the bottom of the base,13. I generally provide the dog, H, with an operating spring, c,'working against a support, as the pin, (1.

To operate my device, it is only necessary to raise the trip lever, G,and cock the hailinien-E, whenthe parts will be in tho position, asshown in figs. 1 and 2. 1 Now, by placing a percussion cap on thenipple, l5, and a. sperm friction match (or any other good match) in theholder, I, and'my device, so arranged, with the point, 11

K, under ornear' the door desired to be secured, we are ready for theburglars; as, when the door is attempted to be opened, ,the bottom of itstrikes upon or against the trip lever, G, driving it-down and drivingback the I p 1 dog, H, thereby releasing the tumbler, O, and causing thespring, D,:to drive the hammer, E, upon: the c ap, snapping it and thusproducing an alarming noise, while 'the pointy strikes the match,producinga light, so alarming the burglar and illuminating the room thelast is an important consideration, especially to the oeeupants ofstrange rooms. Besides the noise and light, the dooris,secure1y-closcd,'as any attempt to open it only drives still fartherthe spurs or teeth, a'a, into the floor.

What I claim as new, and for which I desire Letters Patent of the UnitedStates, is-

1. The combination and arrangement of the wedge A, base B B, and spurs aa, substantially as andfor the i purpose set forth.

2. The combination and arrangement of the wedge A, base Bl), tumbler C,sprihg D, hammer E,,dog H, 1

and nipple F, substantially as and for the purpose set forth.

3. The combination and arrangement of the wedge A,'base BB, tumbler 0,spring D, hammer E, dog H and match-holder l, substantially as and forthe purpose set forth.

Witnesses:

S. D. Leone, ,G. H.'W1nmsrou.

WILLARD FARNHAM, 7

